Question
The efficiency ratio of workers A and B is 15:17. If
both A and B collaboratively finish a task in 30 days, how long would it take for A to complete the task independently?Solution
Let the efficiency of A and B be 15 units per day and 17 units per day, respectively. So, total amount of work = (15 + 17) X 30 = 960 units Time taken by A alone to compete the whole work = 960/15 = 64 days Hence, option c.
More Time and work Questions
√3598 × √(230 ) ÷ √102= ?
15% of 2400 + (√ 484 – √ 256) = ?
(13)2 - 3127 ÷ 59 = ? x 4
6269 + 0.25 × 444 + 0.8 × 200 = ? × 15
...(53 + 480 ÷ 4)% of 20 = ?% of 70
Find the simplified value of the following expression:
62 + 122 × 5 - {272 + 162 - 422}
(15 × 225) ÷ (45 × 5) + 480 = ? + 25% of 1240
√ [? x 11 + (√ 1296)] = 16
11 × 25 + 12 × 15 + 14 × 20 + 15 = ?
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